Zachary Marwil, MD

Managing Director

Gastroenterology

Education: MD – St. George’s University School of Medicine

Residency: Internal Medicine – SUNY Downstate Medical Center

Chief Residency: Internal Medicine – SUNY Downstate Medical Center

Fellowship: Gastroenterology – SUNY Downstate Medical Center

Board Certification: Gastroenterology-American Board of Internal Medicine/Gastroenterology; Internal Medicine-American Board of Internal Medicine

3019 Merrick Road, Wantagh, NY 11793, (516) 785-8075

711 Stewart Avenue, Garden City, New York 11530
Phone: (516) 227-3254, (516) 227-ECLI
Fax: (516) 998-4078

Site map • Privacy policy and compliance disclaimer • Careers

Compliance HelpLine We encourage employees, medical staff, vendors, patients, and business partners to report to Janice Stewart, Compliance Officer at 516.266.5014 or the Compliance HelpLine any actual or suspected violations of the Center’s policies and procedures and/or federal or state law. Calls received by the Compliance HelpLine are most often inquiries but can sometimes be reports of potential misconduct. Our investigatory process includes many methods to determine whether any misconduct occurred. Compliance takes all calls seriously. Inquiries are reviewed by the Compliance Officer and may also be reviewed by other applicable departments.

The Center’s Compliance HelpLine is available 24 hours a day, seven days a week. Compliance HelpLine callers may remain anonymous and those who choose to give their name will have their identities protected to the extent allowed by law. The Compliance HelpLine has multi-lingual operators who can take reports from individuals whose first language is not English. The Compliance HelpLine can be reached by calling (800) 894-3226 or by visiting www.Northwell.ethicspoint.com online or by scanning the below QR code.